:root {
  --brand: #597EF7;
  --brand-dark: #1D2B5F;
  --text: #222222;
  --muted: #5B647A;
  --soft: #F6F8FF;
  --soft-2: #ECF0FF;
  --soft-3: #EAF7FF;
  --card: rgba(255, 255, 255, 0.86);
  --border: rgba(89, 126, 247, 0.16);
  --shadow: 0 18px 42px rgba(89, 126, 247, 0.12);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 15% 0%, #EAF7FF 0, transparent 28%), linear-gradient(135deg, #F6F8FF 0%, #ECF0FF 48%, #EAF7FF 100%);
}

a { color: inherit; }
img { max-width: 100%; display: block; }

.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 9999;
  background: linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(89, 126, 247, 0.10);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand, .drawer-brand, .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  color: var(--brand-dark);
  white-space: nowrap;
}
.brand-logo { width: 42px; height: 42px; object-fit: contain; }
.brand span, .drawer-brand span, .footer-logo span { letter-spacing: 0.5px; }
.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex: 1;
}
.desktop-nav a {
  text-decoration: none;
  color: #3F4A66;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 10px;
  border-radius: 999px;
  transition: all .22s ease;
}
.desktop-nav a:hover, .desktop-nav a.active {
  color: var(--brand);
  background: rgba(89, 126, 247, 0.10);
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.78);
  border-radius: 14px;
  padding: 10px;
}
.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--brand-dark);
  margin: 5px 0;
  border-radius: 9px;
}
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #7580EE 0%, #597EF7 48%, #7AC4F5 100%);
  color: #FFFFFF;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 0 10px rgba(89, 126, 247, 0.28), 0 0 22px rgba(122, 196, 245, 0.20), 0 10px 24px rgba(89, 126, 247, 0.20);
  transition: all 0.25s ease;
  border: 0;
}
.main-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 14px rgba(89, 126, 247, 0.36), 0 0 28px rgba(122, 196, 245, 0.26), 0 14px 28px rgba(89, 126, 247, 0.24);
}
.header-btn { padding: 10px 22px; font-size: 14px; }
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(15, 22, 41, .46);
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(84vw, 330px);
  height: 100vh;
  background: linear-gradient(160deg, #FFFFFF 0%, #F6F8FF 58%, #EAF7FF 100%);
  z-index: 10001;
  transform: translateX(-100%);
  transition: transform .25s ease;
  box-shadow: 22px 0 48px rgba(29, 43, 95, .18);
  padding: 20px;
  overflow-y: auto;
}
.drawer-open .drawer-mask { opacity: 1; pointer-events: auto; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.drawer-brand img, .footer-logo img { width: 42px; height: 42px; object-fit: contain; }
.drawer-close {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: #fff;
  color: var(--brand-dark);
  font-size: 24px;
  line-height: 1;
}
.drawer-nav { display: grid; gap: 10px; }
.drawer-nav a {
  text-decoration: none;
  padding: 13px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,.78);
  border: 1px solid var(--border);
  color: #3F4A66;
  font-weight: 700;
}
.drawer-nav a.active { color: #fff; background: linear-gradient(135deg, #597EF7, #7AC4F5); }
.drawer-note {
  margin-top: 18px;
  padding: 14px;
  border-radius: 16px;
  color: var(--muted);
  background: rgba(89,126,247,.09);
  line-height: 1.8;
  font-size: 13px;
}

main { min-height: 60vh; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 58px 0; }
.section-tight { padding: 34px 0; }
.section-head { max-width: 760px; margin-bottom: 28px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  color: var(--brand);
  background: rgba(89,126,247,.10);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 14px;
}
h1, h2, h3 { color: var(--brand-dark); margin-top: 0; line-height: 1.25; }
h1 { font-size: clamp(32px, 5vw, 56px); margin-bottom: 18px; letter-spacing: -1px; }
h2 { font-size: clamp(24px, 3vw, 36px); margin-bottom: 14px; }
h3 { font-size: 20px; margin-bottom: 10px; }
p { line-height: 1.9; color: #3F4A66; margin: 0 0 14px; }
.lead { font-size: 17px; color: #3F4A66; max-width: 860px; }
.hero-actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin-top: 24px; }
.text-link { color: var(--brand); text-decoration: none; font-weight: 800; }
.text-link:hover { text-decoration: underline; }

.banner-slider {
  max-width: 1200px;
  margin: 28px auto 36px;
  border-radius: 20px;
  background: #101827;
  box-shadow: 0 22px 48px rgba(16, 24, 39, 0.20);
  overflow: hidden;
  position: relative;
  height: 390px;
}
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .45s ease;
  background: #101827;
}
.slide.active { opacity: 1; z-index: 1; }
.slide img { width: 100%; height: 100%; object-fit: contain; background: #101827; }
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.45);
  background: rgba(255,255,255,.76);
  color: var(--brand-dark);
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(0,0,0,.15);
}
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  z-index: 4;
  display: flex;
  justify-content: center;
  gap: 10px;
}
.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 0;
  background: rgba(255,255,255,.62);
  cursor: pointer;
  transition: all .22s ease;
}
.slider-dot.active { width: 30px; background: linear-gradient(135deg, #597EF7, #7AC4F5); }

.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.quick-card, .info-card, .glass-card, .faq-item, .notice-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}
.quick-card {
  padding: 18px;
  text-decoration: none;
  transition: transform .22s ease, box-shadow .22s ease;
}
.quick-card:hover { transform: translateY(-3px); box-shadow: 0 22px 46px rgba(89,126,247,.16); }
.quick-num { color: var(--brand); font-weight: 900; font-size: 13px; letter-spacing: .08em; }
.quick-card h3 { margin: 8px 0 6px; }
.quick-card p { font-size: 14px; margin: 0; color: var(--muted); }
.intro-strip {
  margin-top: 28px;
  padding: 22px 26px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(255,255,255,.92), rgba(234,247,255,.82));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.info-card { padding: 24px; }
.info-card .num { color: var(--brand); font-weight: 900; font-size: 24px; }
.info-card ul, .feature-list, .check-list { margin: 14px 0 0; padding-left: 20px; color: #3F4A66; line-height: 1.9; }

.split-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: center;
  margin: 0 0 34px;
}
.split-row:nth-child(even) .split-media { order: 2; }
.split-media {
  border-radius: 26px;
  padding: 16px;
  background: rgba(255,255,255,.78);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.split-media img { width: 100%; height: 320px; object-fit: contain; border-radius: 18px; background: linear-gradient(135deg, #F6F8FF, #EAF7FF); }
.split-content { padding: 12px; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.content-card { overflow: hidden; text-decoration: none; color: inherit; transition: transform .22s ease; }
.content-card:hover { transform: translateY(-3px); }
.content-card img { width: 100%; height: 190px; object-fit: contain; background: linear-gradient(135deg, #F6F8FF, #EAF7FF); }
.content-card-body { padding: 20px; }
.tag { display: inline-flex; color: var(--brand); background: rgba(89,126,247,.10); padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 800; margin-bottom: 12px; }

.app-panel {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 30px;
  align-items: center;
  padding: 24px;
}
.app-panel img { width: 100%; height: 390px; object-fit: contain; border-radius: 22px; background: linear-gradient(135deg, #F6F8FF, #EAF7FF); }
.help-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 24px; align-items: center; }
.help-layout img { width: 100%; height: 340px; object-fit: contain; border-radius: 22px; background: linear-gradient(135deg, #F6F8FF, #EAF7FF); }
.help-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.notice-card { padding: 20px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.faq-item { padding: 22px; }
.faq-item h3 { color: #1D2B5F; font-size: 18px; }
.responsible-box {
  padding: 28px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(29,43,95,.95), rgba(89,126,247,.88));
  color: #fff;
  box-shadow: 0 22px 48px rgba(29,43,95,.18);
}
.responsible-box h2, .responsible-box p { color: #fff; }
.responsible-box ul { margin: 14px 0 0; padding-left: 20px; line-height: 1.9; }

.page-hero {
  padding: 64px 0 32px;
  background: radial-gradient(circle at 80% 20%, rgba(122,196,245,.22), transparent 32%);
}
.page-card {
  padding: 32px;
  border-radius: 28px;
  background: rgba(255,255,255,.86);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.page-layout { display: grid; grid-template-columns: 1.4fr .8fr; gap: 24px; align-items: start; }
.page-content h2 { margin-top: 28px; }
.sidebar-card { padding: 22px; position: sticky; top: 96px; }
.sidebar-card img { width: 100%; height: 220px; object-fit: contain; background: linear-gradient(135deg, #F6F8FF, #EAF7FF); border-radius: 18px; margin-bottom: 14px; }
.timeline { display: grid; gap: 16px; margin-top: 18px; }
.timeline-item { padding: 18px; border-radius: 18px; background: rgba(89,126,247,.08); border: 1px solid var(--border); }
.contact-list { display: grid; gap: 16px; }
.contact-list a { color: var(--brand); font-weight: 800; text-decoration: none; }

.site-footer {
  background: linear-gradient(135deg, #1F1F1F 0%, #2B2B2B 100%);
  color: #E8ECF5;
  margin-top: 40px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 42px;
}
.footer-brand-block p { color: #C9D1E4; margin-top: 16px; }
.footer-logo { color: #fff; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-links h3 { color: #fff; font-size: 16px; }
.footer-links a { display: block; color: #E8ECF5; text-decoration: none; margin: 10px 0; opacity: .86; }
.footer-links a:hover { color: #7AC4F5; }
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px 28px;
  border-top: 1px solid rgba(232,236,245,.12);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: #C9D1E4;
  font-size: 13px;
}

@media (max-width: 1120px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-block; }
  .brand { position: absolute; left: 50%; transform: translateX(-50%); }
  .brand span { display: none; }
  .header-inner { min-height: 68px; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .page-layout { grid-template-columns: 1fr; }
  .sidebar-card { position: static; }
}
@media (max-width: 760px) {
  .container { padding: 0 16px; }
  .header-inner { padding: 0 14px; }
  .header-btn { padding: 9px 14px; font-size: 13px; }
  .banner-slider { height: 220px; margin: 18px 16px 26px; border-radius: 16px; }
  .slider-btn { width: 34px; height: 34px; font-size: 20px; }
  .slider-prev { left: 10px; }
  .slider-next { right: 10px; }
  .section { padding: 42px 0; }
  .quick-grid, .info-grid, .card-grid, .faq-grid, .help-grid { grid-template-columns: 1fr; }
  .split-row, .app-panel, .help-layout, .footer-inner { grid-template-columns: 1fr; }
  .split-row:nth-child(even) .split-media { order: 0; }
  .split-media img, .app-panel img, .help-layout img { height: 240px; }
  .content-card img { height: 170px; }
  .page-card { padding: 22px; }
  .footer-links { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}